Dual Range Analyzers and the Scale Transition Point
This is the fifth in a series of posts that highlight ways to prepare for ECMPS. To view the entire series, click here to see all of the posts which are labeled, "Preparing for ECMPS".
The last several posts have pointed out practical ways to correct monitoring plan data. This installment deals with another common monitoring plan problem that is easy to correct. If you use a dual range analyzer, you are required to report the scale transition point.
First, the use a dual range analyzer is indicated by setting the dual range indicator to "1" in the analyzer data record. By setting that indicator to "1", the monitoring plan data will be subject to the SPAN-4 evaluation check which checks for the existence of the scale transition point in the non-flow span data for components which use a dual range.
(Click on the picture to view an enlarged copy.)
Second, the use of dual range analyzers requires that two active records--one for the low range and one for the high range--exist in your non-flow span data. In both records, the scale transition point needs to be added. For both records, this will be the same number because the scale transition point is defined as the scale transition point from the normal to the secondary range (see the information for the ScaleTransitionPoint in the Monitoring Span Data section of the monitoring plan data reporting instructions).
(Click on the picture to view an enlarged copy.)
In order to correct the SPAN-4-D error, you simply need to add the same scale transition point to both the high and low span records.
(Click on the picture to view an enlarged copy.)
This is the fifth in a series of posts that highlight ways to prepare for ECMPS. To view the entire series, click here to see all of the posts which are labeled, "Preparing for ECMPS".
The last several posts have pointed out practical ways to correct monitoring plan data. This installment deals with another common monitoring plan problem that is easy to correct. If you use a dual range analyzer, you are required to report the scale transition point.
First, the use a dual range analyzer is indicated by setting the dual range indicator to "1" in the analyzer data record. By setting that indicator to "1", the monitoring plan data will be subject to the SPAN-4 evaluation check which checks for the existence of the scale transition point in the non-flow span data for components which use a dual range.
(Click on the picture to view an enlarged copy.)Second, the use of dual range analyzers requires that two active records--one for the low range and one for the high range--exist in your non-flow span data. In both records, the scale transition point needs to be added. For both records, this will be the same number because the scale transition point is defined as the scale transition point from the normal to the secondary range (see the information for the ScaleTransitionPoint in the Monitoring Span Data section of the monitoring plan data reporting instructions).
(Click on the picture to view an enlarged copy.)In order to correct the SPAN-4-D error, you simply need to add the same scale transition point to both the high and low span records.
(Click on the picture to view an enlarged copy.)Labels: Preparing for ECMPS
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